GB 50181-1993 Technical specification for construction engineering of flood storage and detention areas

This specification applies to flood storage and detention area construction project planning and architectural design of buildings (structures) in areas with a water depth of no more than 8m. GB 50181-1993 Technical Specification for Flood Storage and Detention Area Construction Project GB50181-1993 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
50181-93
Technical Code for Building and Civil Engineering in Retarding Basin Construction Standards
1993-07-16
1994-02-01
State Administration of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standards Full Text Information System
Jointly Issued
Engineering Construction Standards Full Text Information System
Announcement on Partial Revision of Engineering Construction Standards
National Standard "Technical Specifications for Construction Engineering of Flood Storage and Detention Areas" GB50181-93 has been partially revised by China Academy of Building Research in conjunction with relevant units. It has been reviewed by relevant departments and the partially revised provisions are now approved for implementation on January 15, 1999. The provisions of the corresponding provisions in the standard are repealed at the same time. This is hereby announced. Ministry of Construction of the People's Republic of China
December 23, 1998
Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
National Standard of the People's Republic of China
Technical Specifications for Construction Engineering in Flood Storage and Detention Areas
50181-93
Editor: Ministry of Construction of the People's Republic of ChinaApproval Department: Ministry of Construction of the People's Republic of ChinaEffective Date: February 1, 1994
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Notice on the Release of the National Standard "Technical Specifications for Construction Engineering in Flood Storage and Detention Areas"
Construction Standard [1993] No. 541
According to the requirements of the State Planning Commission's Document No. Jizong [1986] 2630, the "Technical Specifications for Construction Engineering in Flood Storage and Detention Areas" formulated by the China Academy of Building Research in conjunction with relevant units has been reviewed by relevant departments and is now approved as a mandatory national standard for construction engineering in flood storage and detention areas GB50181-93, which will be implemented on February 1, 1994.
This standard is managed by the Ministry of Construction, and the specific interpretation and other work is the responsibility of the China Academy of Building Research. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
July 16, 1993
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Preparation Instructions
The Technical Specifications for Construction Engineering in Flood Storage and Detention Areas is compiled by our Ministry in accordance with the notice of the State Planning Commission's Document No. 2630 of [Jizong 1986] and the Ministry of Construction's Document No. 727 of [Jianbiaozi] (1991). It is compiled by the China Academy of Building Research in conjunction with relevant units.
Since 1988, the specification compilation team has organized relevant units such as design, scientific research and colleges and universities across the country to carry out targeted flood resistance test research on materials and structures and a large number of investigations and measurements of flood storage and detention areas in accordance with the plan requirements. It has summarized the domestic scientific research achievements and flood control and flood prevention engineering practices in recent years, learned from advanced foreign experiences, and widely solicited opinions from relevant units across the country. After repeated revisions, it was finally reviewed and finalized by our Ministry in conjunction with relevant departments.
This specification is divided into eight chapters and eight appendices. The main contents include: establishing the formulation principles of construction project planning in flood storage and detention areas and the flood-resistant defense standards for buildings, determining the wave element calculation method and calculation parameter selection principles suitable for my country's flood storage and detention areas and their application characteristics; proposing theories and methods for wave load calculation and flood-resistant design of building buildings that conform to my country's architectural characteristics and economic conditions; proposing flood-resistant design methods for brick houses, reinforced concrete houses and open houses in view of the changes in the physical and mechanical properties of building materials after being soaked in floods, the flood-resistant experience in flood storage and detention areas, and the working characteristics of building buildings in water environments, and formulating flood-resistant structural measures and architectural design requirements for building buildings; proposing corresponding foundation designs and simple foundation treatment methods in view of the reduction in bearing capacity of foundation soil after soaking and the possible uneven settlement. The implementation of this code must be used in conjunction with various building structure design standards and specifications such as the "Uniform Standard for Building Structure Design" GBJ68-84 and the "Building Structure Load Code" GBJ9-87 approved and promulgated by the state in 1984. It must not be mixed with various national building structure design standards and specifications that have not been formulated and revised in accordance with GBJ68-84. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
In order to improve the quality of the code, all units are requested to pay attention to summarizing experience and accumulating information in the process of implementing this code, and send any problems and opinions found to the China Academy of Building Research (No. 9 Xiaohuangzhuang Road, Andingmenwai, Beijing, Postal Code 100013) at any time for reference in future revisions.
Ministry of Construction of the People's Republic of China
July 1992
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Engineering Construction Standards Full-text Information System
Main Symbols
Chapter 1
Chapter 2
Chapter 3
Section 1
Section 2
Section 3
Section 4
Chapter 4||tt ||Section 1
Section 2
Chapter 5
Section 1
Section 2
Section 3
Chapter 6
Section 1
Section 2
Section 3
Chapter 7
Section 1
Section 2
Section 3
Chapter 8
Planning of construction projects in flood storage and detention areas||tt| |Basic provisions for flood-resistant design of buildings
Construction measures and others
Wave elements and wave loads
Brick buildings
Reinforced concrete buildings
Single-storey open houses
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.80000.0
Engineering construction standards full-text information system
Section 1
Section 2
Section 3
Appendix—
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Appendix 7
Appendix 8
Construction measures
Explanation of terms in this code
Calculation method of wave load on semi-transparent houseCalculation method of wave load on transparent house.
Floor slab ( Balcony slab, awning slab) and other horizontal slab wave load calculation method
Standard value of bearing capacity on foundation
Bearing capacity verification of semi-permeable house wallBrick-filled wall frame flood resistance verification
Terms used in this specification
Additional explanation
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Main symbols
a, b——bar cross-sectional dimensions;
Cun, Cs, CL——variable load effect coefficients of waves, safety floor and floor below the safety floor respectively;
Building design water depth;
Flood storage and detention calculation water depth,
Building submerged water depth;
-wind increase and decrease water height;
Bar Diameter of cross section;
Height of a wave crest above the still water surface;
Design height of the bottom of the floor of the safety layer near the water surface; Average wave height;
Calculated wave height,
Wavelength;
Average wavelength;
-wind zone length;
Standard value of variable load on floor;
Distributed wave load;
Standard value of wave load;
Wave load;||t t||heavyness of water;
YYs, YL
are the partial coefficients of variable loads of waves, safety floor and floor below the safety floor respectively;
T—interval between two operations of flood storage area; Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Ta——average period of waves,
Tw——recurrence period of calculated wind speed,
Vr, V. are the horizontal and vertical movement speeds of water particles respectively. Calculated wind speed;
are the variable load combination value coefficients of safety floor and floor below the safety floor respectively.
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Chapter 1 General
Section 1.0.Article 1 This specification is formulated to implement the flood storage and detention plan, protect the lives and property of the people, reduce economic losses, and unify the technical requirements for construction projects in flood storage and detention areas. Article 1.0.2 This specification applies to the planning of construction projects in flood storage and detention areas and the flood-resistant design and construction of buildings (structures) in areas with a water depth of no more than 8m. Article 1.0.3 In addition to complying with the provisions of this specification, the planning and flood-resistant design of construction projects in flood storage and detention areas shall also comply with the provisions of the relevant current national standards and specifications. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Chapter II
Planning of Construction Projects in Flood Storage and Detention Areas
Article 2.0.1 The scope, scale, nature and flood storage and detention objectives of the construction project planning shall comply with the provisions of the overall planning of the flood storage and detention area. Article 2.0.2 The construction project planning shall be formulated based on the requirements for safe construction and management of the flood storage and detention area, the geographical location, the planned area, the topography and landforms, the calculated water depth of flood storage and detention, the population density, and the social economy and industrial development. Article 2.0.3 Construction sites should be selected in areas that are close to roads, have higher terrain, are relatively flat, have good soil quality and are easy to drain. They should also avoid areas where floating objects are easy to gather during flood storage and detention, as well as mainstream flood inflow or flood outflow areas. It is strictly prohibited to build houses near designated flood diversion and flood outflow gates. Article 2.0.4 Construction and occupation of sites within flood storage and detention areas should comply with flood control requirements, ensure flood storage and detention functions, and make rational use of land. Article 2.0.5 Public buildings with flood avoidance and disaster relief functions should be set up in building groups.
Newly built permanent public buildings should adopt flat roofs or other reasonable architectural structures that are conducive to flood avoidance.
Existing public buildings that meet flood control design requirements should add collective flood shelters as needed.
Article 2.0.6 Flood shelters can be selected based on flood depth, population density, flood storage and detention opportunities, and through economic and technical comparisons, such as flood shelter houses, safe area embankments, safe platforms and flood shelters.
Article 2.0.7 The appearance, adjacent spacing and layout of houses should be determined by comprehensive comparison based on factors such as water flow, wave action and the passage of lifeboats. Article 2.0.8 Wind and wave-proof forest belts should be planted around villages and building groups. Tall trees should be planted in front of and behind houses.
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